PHILADELPHIA -- AMI Entertainment Network has launched its latest contest for music fans. This one celebrates the 50th anniversary of Chicago Transit Authority, the debut album of the group later renamed Chicago. Released in April 1969, it remained on the Billboard "200" album list for 171 weeks.

AMI is offering contestants the opportunity to win a Chicago: VI Decades Live box set. This features live performances by Chicago recorded between 1969 and 2014, including their performances at the well-remembered Isle of Wight Festival in 1970. The prize pack also includes a signed lithograph and tour hoodie.

Music fans can enter the contest between now and Wednesday, May 8, by using the AMI Music app (available for iOS and Android devices) or any participating AMI jukebox. Entries must be submitted by Wednesday, May 8.

Founded in 1909, Automatic Musical Instrument Co. pioneered jukebox design with its Automatic Selective Phonograph in 1927. This was the first coin-op phonograph to offer 20 selections, and the ancestor of a jukebox line that continues today with AMI's popular downloading models.

AMI Entertainment Network has spent more than a century developing high-tech music entertainment solutions for the bar, restaurant, and hospitality industries.